參數(shù)資料
型號(hào)： TWL1110GQER
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA80
封裝： PLASTIC, BGA-80
文件頁(yè)數(shù)： 12/40頁(yè)
文件大?。?/td> 564K
代理商： TWL1110GQER
TWL1110
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS103 – NOVEMBER 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The human voice is effective from a frequency range of 300 Hz to 3300 Hz in telephony applications. In order
to eliminate unwanted signals, the VBAP design has two types of filters that operate in both the transmit and
receive path. A low-pass filter attenuates the signals over 4 kHz. A selectable high-pass filter cleans up the
signals under 100 Hz. This reduces noise that may have coupled in from 50/60-Hz power cables. The high-pass
filter is bypassed by selecting the corresponding register bit.
VBAP has many programming features that are controlled using a 2-wire standard serial I2C interface. This
allows the device to interface with many digital ICs such as a DSP or a microprocessor. The device has seven
registers: power control, mode control, transmit PGA, receive PGA, high DTMF, low DTMF, and auxiliary mode
control. Some of the programmable features that can be controlled by I2C interface include:
D Transmit amplifier gain
D Receive amplifier gain
D Sidetone gain
D Volume control
D Earphone control
D PLL power control
D Microphone selection
D Transmit channel high-pass filter control
D Receive channel high-pass filter control
D Companding options and selection control
D PCM loopback
D DTMF control
D Pulse density modulated control
The VBAP is also capable of generating its own internal clocks from a 2.048-MHz master clock input.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TWL1110PBS 制造商:Rochester Electronics LLC 功能描述:- Bulk
TWL1110PBSR 制造商:Rochester Electronics LLC 功能描述:- Bulk
TWL1110TQFP 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:VOICE-BAND AUDIO PROCESSOR VBAPE
TWL1200 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:SDIO, UART, AND AUDIO VOLTAGE-TRANSLATION TRANSCEIVER
TWL1200IPFBRQ1 功能描述:轉(zhuǎn)換 - 電壓電平 SDIO,UART,and Audio Vltg-Level Xcvr RoHS:否 制造商:Micrel 類(lèi)型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
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